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Finding the Fourth Proportional to 445,732.66, 668,591.70 and 179,486.47

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Solution

The fourth proportional to 445,732.66, 668,591.70 and 179,486.47 is: 269,226.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,732.66 : 668,591.70 = 179,486.47 : x
  2. Step 2: Convert to fraction form
    445,732.66/668,591.70 = 179,486.47/x
  3. Step 3: Cross multiply
    445,732.66x = 668,591.70 × 179,486.47
  4. Step 4: Simplify right side
    445,732.66x = 120,003,164,104.30
  5. Step 5: Solve for x
    x = 120,003,164,104.30/445,732.66
  6. Step 6: Final answer
    x = 269,226.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.